Covering for buffing-wheels.



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C-VERING FUR BUFFING WHEELS.

(Application led Dec. 6, 1897.)

(No Model.)

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UNTTnn STATES PATENT Onnrcn.

GEORGE RILEY, OF LEICESTER, ENGLAND, ASSIGNOR OF TWO-THIRDS TO NYE rb TREDICK, OF PHILADELPHIA, PENNSYLVANIA.

COVERING FOR BUFFING-WHEELS.

SPECIFICATION forming part of Letters Patent No. 630,109, dated August 1, 1899.

Application tiled December 6, 1897. Serial No. 66 0,902. (No model.)

To @ZZ 'wh/071@ it may concern.'

Be it known that I, GEORGE RILEY, of Leicester, county of Leicester, England, have invented a new and useful Improvement in Coverings for Birding-Wheels, (patented in Great Britain, No. 9,166, dated May 1, 1896,) of which the following is a specification.

This invention has reference to anim proved covering or tire for Wheels or rolls to be used more particularly for buffing or polishing shoes, rizo., or for analogous purposes; and the invention consists in applying to the wheel or roll a tire or covering consisting of a ribbed fabric having an elastic thread or threads incorporated therein at right angles to the ribs,

the fabric being so applied to the Wheel that the elastic threads will extend around the Wheel in the plane of the same and the ribs transversely thereof, whereby the peripheral surface of the wheel will be composed of trans verse ridges.

This invention also consists in the details of construction and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure lis an elevation of a buiiing or polishing,r Wheel provided with a tire or covering in accordance with my invention. Fig. 2 is a vertical longitudinal section through the same. Fig. 3 is a perspective view of the covering removed. Fig. 4 is an elevation of a buffer of another form provided with a covering in accordance with myinvention. Fig. 5 is a longitudinal section through the same.

Referring to the drawings, my improvedV covering consists of a fabric formed with a series of parallel ribs l, which fabric has incorporated therein elastic threads 2, of indiarubber, which extend transversely of the ribs. As a result the fabric is capable of extension only in the direction of the threads. I prefer to produce this fabric in tubular form by means of a circular-knitting machine employing two sets of coacting needles, by which a one-by-one rib is formed, and I lay within the Wales of this fabric and at each course an elastic thread or threads, the result being a seamless tubular knit fabric having its ribs extending side by side in one direction and elastic threads extending side by side in a direction at right angles to the ribs; but it will be understood that the fabric may be produced by other means, the essential requirement being that it shall he formed with ribs extending in one direction, and an elastic thread or threads extending in a direction at right angles to the ribs. In applying a fabric of this nature to the Wheel or buffing-head as a covering for the same it is preferably applied in a stretched condition, with the ribs 6o extending transversely of the plane of the wheel and the elastic threads extending at right angles to the ribs in the direction of the plane of rotation of the wheel. When thus applied, the tendency of the elastic threads to resume their normal condition will act to hold the fabric tightly and immovably 011 the Wheel, and the :ribs being separated slightly by stretching the surface of the Wheel will present a series of transverse and dis-'7o tinct ridges, as clearly shown in Figs. 1,2, 4, and 5.

In Figs. 1 and 2 a section of the tubular fabric is applied in the manner described to a bufing or polishing wheel of well-known construction. I-Iere it Will be seen that the edges of the fabric are turned in, as at 4, and are clamped between disks 5, held on a shaft or sleeve 6, which is adapted to be rotated in any suitable manner. The fabric in this form 8o of buffer may inclose a filling in the form of a rubber ring, or any other suitable filling may be employed which will give the periphery of the Wheel the desired rounded form.

In Figs. 4 and 5 I have shown the fabric or 85 covering applied to a buffing-head of Wellknown form. In this case a section of the tubular fabric is stretched over a conical rotary head 7, with the ribs extending transversely of the rotation of the head, and the 9o fabric confined by means of a collar 8, held tightly around the same by means of a second collar 9, screwed onto the shank of the head. In this case, as in the first described, the peripheral surface of the head presents a series of transverse ridges.

It has been found in practice that bufling heads or wheels formed with a surface of the character described will possess the highest degree of effectiveness for polishing and buffroo ing purposes, more particularly in the polishing and bufng of shoes. The transverse ridges or ribs being knit will possess the required degree of rigidity Without being sufiiciently hard and nnyielding to injure the surface acted on, While the elastic threads extending transversely of the ribs and by being stretched will maintain the ribs slightly separated and prevent them from mashing down or being displaced, so that they Will possess great durability and Wearing qualities.

It Will be understood that it is not essential that the fabric be applied in a stretched condition with the ribs separated, as described, for good results have been obtained Where the fabric has been applied in a normal distended condition with the ribs lying closely side by side. In this case the elastic threads serve also, as in that irst described, to maintain the form of the ribs and prevent their collapse or displacement.

Having thus described my invention, what I claim isl. The improved bufng-Wheel provided with an active surface consisting of a ribbed fabric having incorporated therein elastic threads extending at right angles, or substantially so to the ribs, With the ribs eX- tending transversely of the plane of rotation of the Wheel.

2. The improved buffing-wheel provided with an active surface consisting of a ribbed fabric extensible ina direction at right angles to the ribs, with the latter extending transversely of the plane of rotation of the wheel.

In testimony whereof I hereunto set my hand, this 18th day of November, 1897, in the presence of tWo attesting witnesses.

GEORGE RILEY.

Witnesses:

FRED FELLOWES WIGGINS, GEORGE WILLIAM COLTMAN. 

